Female Mold And Opposed Coaxial Dynamic Press Members Patents (Class 425/352)
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Patent number: 7641465Abstract: A rotor for a rotary tablet press, which has an upper and a lower punch guiding for upper and lower punches, which co-operate with bores of a die plate which is arranged between the upper and the lower punch guiding, wherein the punches have shafts, which are sealedly axially movable in guiding bores of the punch guidings by means of a sealing arrangement, and wherein means act between the shafts and the guiding bores which prevent a rotation of the pressing punches in the punch guidings, characterised in that the shafts have an out of round profile in the cross section, and the cross section of the guiding bores is complementary.Type: GrantFiled: September 11, 2008Date of Patent: January 5, 2010Assignee: Fette GmbHInventors: Friedrich Meissner, Wolfgang Soltau, Jan Naeve, Peter Lueneburg
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Patent number: 7594809Abstract: A molding die unit has a shell and a die. The die is located inside the shell. A die hole is formed in the die. The die has first and second portions. The first and second portions include their respective surfaces defining the die hole and facing each other. A first through hole is formed in the shell and penetrates so as to open in an outside surface and in an inside surface of the shell. A second through hole continuing to the first through hole is formed at a position corresponding to the first through hole and in the first portion. The second through hole includes a first region and a second region. The first region opens in a surface of the first portion facing the inside surface of the shell and has a first sectional area. The second region opens in the surface defining the die hole and has a second sectional area smaller than the first sectional area.Type: GrantFiled: January 19, 2007Date of Patent: September 29, 2009Assignee: TDK CorporationInventors: Sadaki Satoh, Masashi Gotoh, Ken Kikuchi, Takeshi Itoh, Takuo Kataho
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Publication number: 20090230589Abstract: A thermoforming process capable of coining and flowing material is provided, such as for making a thermoformed energy absorber for self-attachment to a vehicle bumper beam. The energy absorber includes a thermoplastic sheet with first thickness shaped by a thermoforming process to include a base and lobes configured to absorb energy. The sheet further has integrally formed attachments with solid heads formed from material flowed from adjacent areas into the attachment during the thermoforming process. Many other structures can be formed, such as ringed ridges, thinned regions, snap-attachments, hooks, living hinges, bosses, and the like. The present invention further includes an apparatus and a method for accomplishing the above, such as a heater for heating the sheet, and a die for stretching and shaping the sheet, where heated material is flowed by opposing coining die components to form selectively-shaped 3D structures.Type: ApplicationFiled: February 2, 2009Publication date: September 17, 2009Inventors: Michael A. Rossi, Joel M. Cormier, Donald S. Smith, Matthew M. Gerwolls
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Publication number: 20090208624Abstract: A method and apparatus for forming pressed food products can utilize up to 98% chicken breast meat in high profit margin products. Breast meat is marinated and then extruded into a slab which is then frozen and shaped into a plank. The plank is sliced into unit portions which are then pressed into shaped portions with a preferred, or other, press. One preferred press linearly reciprocates unit portions into the press. This or another preferred press imparts three dimension exterior shape to the pressed food products.Type: ApplicationFiled: February 18, 2008Publication date: August 20, 2009Inventors: James E. Mauer, Benedict DiGerlando
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Patent number: 7560068Abstract: A method for manufacturing a cutting insert green body having undercuts includes providing a die cavity formed in closed top and bottom dies; closing a bottom of the die cavity by a bottom punch accommodated in a punch tunnel formed in the bottom die; filling the die cavity with a pre-determined amount of sinterable powder; moving a top punch towards the die cavity through a punch tunnel formed in the top die; compacting the powder by urging the top and bottom punches towards each other, thereby forming the green body; and moving the top die and punch away from the bottom die and punch, thereby enabling removal of the formed green body. An apparatus for manufacturing a cutting insert green body having undercuts includes top and bottom dies which abut each other and top and bottom punches which slide in their respective dies.Type: GrantFiled: December 29, 2005Date of Patent: July 14, 2009Assignee: Iscar, Ltd.Inventors: Carol Smilovici, Osama Atar, Assaf Ballas, Basem Dakwar
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Publication number: 20090175976Abstract: An apparatus comprises a punch arrangement and a die arrangement that are opposite one another and closable for defining a forming chamber in which an object can be compression-moulded from a dose of plastics, a punch included in the punch arrangement and two parts that are mutually movable for forming a portion of the object provided with undercuts. The punch arrangement comprises an annular forming element for forming an edge zone of the object, the annular forming element and the punch being mutually movable whilst the dose fills the forming chamber.Type: ApplicationFiled: June 8, 2007Publication date: July 9, 2009Inventors: Fiorenzo Parrinello, Zeno Zuffa
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Patent number: 7540734Abstract: The problem of a conventional press molder is insufficient rigidity of an annular cushion ring receiving inward force, which cannot prevent a lower portion of the cushion ring from deforming, i.e., bending and expanding outward. A press molder (1) according to the present invention comprises a die (2), a punch (3) and a cushion ring (5). The cushion ring (5) has a rib (51) which is a reinforcing structure so as to be prevented from being bent at the time of press molding, and the punch (3) is formed therein with a recess (31) which is a reinforcing structure a escape part so as to prevent the punch 3 from interfering with the rib (51) of the cushion ring (5).Type: GrantFiled: July 22, 2005Date of Patent: June 2, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Norihiro Takayama, Yasuhito Hanaki
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Publication number: 20090127727Abstract: The present invention relates to a method of manufacturing a formed article forming an upper surface of a forming material comprised of a thermosoftening substance into a desired shape by positioning the forming material on a forming surface of a mold and heating the forming material to a temperature permitting deformation to bring a lower surface of the forming material into tight contact with the forming surface. As the mold, a mold having, on a forming surface thereof, a plurality of irregularities with a maximum height Rmax ranging from 0.1 to 100 micrometers and an average spacing S between local peaks ranging from 0.01 to 1.00 mm is employed. The present invention further relates to a mold and method of manufacturing the same. According to the present invention, a formed article with a desired shape can be manufactured with high precision and high productivity by hot sag forming method without the occurrence of the fusion between the forming material and the mold.Type: ApplicationFiled: November 20, 2006Publication date: May 21, 2009Applicant: HOYA CORPORATIONInventors: Masaaki Matsushima, Mikio Chisha, Noriaki Taguchi
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Patent number: 7494330Abstract: The device serves to receive a tool for calibrating of workpieces (83), preferably workpieces manufactured by a powder metallurgical process. On the example shown the tool comprises the lower stamps (77, 78, 79) and the upper stamps (80, 81, 82) located on tool supports (31, 32, 33; 31?, 32?, 33?). These stamps may be moved up and down individually or together parallel to the axis (40). Also movable up and down is the tool support (41) on which, if required, a center pin (85) is mounted. The device is particularly suitable for the calibration of complicated workpieces, such as represented for example by the workpiece (83) having the form of a body of rotation.Type: GrantFiled: October 28, 2004Date of Patent: February 24, 2009Assignee: Alvier AG PM-TechnologyInventors: Hermann Good, Peter Rauch
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Publication number: 20090017150Abstract: The invention relates to a device for producing goods for consumption, consisting of a fat mass, in particular a fat mass containing cocoa or a chocolate-type fat mass, said goods contains a large number of hollow moulds (1a, 1b) that can be filled with the fat mass (M) when the latter has been heated and is in a free-flowing state, the moulds being configured as depressions in a mould block (1). The inner surface of each hollow mould (1a, 1b) shell-shaped goods for consumption that are to be produced. The device also comprises a plurality of die-type cooling bodies (3a, 3b), which are displaceably mounted on a suspension device (4), a respective cooling body (3a, 3b) being lowered into a respective hollow mould (1a or 1b) and the outer surface of the respective cooling body (3a, 3b) determining the inner surface of the shell-shaped goods for consumption (M) that are to be produced.Type: ApplicationFiled: January 13, 2006Publication date: January 15, 2009Inventor: Michael Paul
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Publication number: 20090007622Abstract: A method for operating a mechanical press including at least one electric drive motor, a drive control for controlling the at least one motor, a ram, a mechanical element for translating rotational motion of the at least one motor to linear motion of the ram in a first rotation direction, into a linear motion of the ram arranged to be lowered and raised along a linear path for operating the press to carry out a press cycle including a pressing part and one or more non-pressing parts of the press cycle, and by providing a control output to the drive control such that the speed of the at least one drive motor is varied during at least one pressing or non-pressing part of the press cycle. The press may be reversed between production cycles. Also press and system including a such press.Type: ApplicationFiled: June 7, 2006Publication date: January 8, 2009Applicant: ABB RESEARCH LTD.Inventors: Marc Segura Golorons, Sjoerd Bosga
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Publication number: 20090004317Abstract: A molding compound for use in an integrated circuit package comprises an epoxy and a thermally conductive filler material. The thermally conductive filler material comprises between 70% and 95% of the molding compound and has a thermal conductivity between 10 W/m-K and 3000 W/m-K.Type: ApplicationFiled: June 30, 2007Publication date: January 1, 2009Inventors: Xuejiao Hu, Leonel R. Arana, Robert M. Nickerson, Rahul N. Manepalli, Dingying Xu
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Publication number: 20080296797Abstract: A block former comprises a portable device for compression forming of carbon dioxide particles into a non-homogenous block of carbon dioxide. The formed non-homogenous block can be used with carbon dioxide blasters that shave the formed block, and then eject the carbon dioxide shavings into a pneumatic jet as a blast media for cleaning surfaces. The block former further comprises a control system comprising a logic system of switches, valves, and timers to perform a timed sequence of events to form loose carbon dioxide particles into a non-homogenous block, to release compression on the block, and to eject the formed block from the block former. A single compression surface is provided to compress the carbon dioxide particles block, to release pressure on the block, and to eject the block from the block former device. The carbon dioxide particles used to form the non-homogeneous block can vary in size from snow to chunks or pellets.Type: ApplicationFiled: May 15, 2008Publication date: December 4, 2008Applicant: Cold Jet LLCInventors: Richard Broecker, Matthew Gunderson
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Publication number: 20080277830Abstract: An apparatus comprising a forming arrangement that is movable along a path for compression moulding of doses of plastics, a transferring device for transferring the doses to the forming arrangement, a liquid cooling arrangement for cooling the transferring device, an arm arrangement associated with the transferring device for moving the transferring device along a further path having a portion substantially coinciding with a further portion of said path.Type: ApplicationFiled: October 10, 2006Publication date: November 13, 2008Applicant: SACMI COOPERATIVA MECCANICI IMOLA SOCIETA' COOPERTIVAInventors: Alessandro Balboni, Matteo Camerani, Fiorenzo Parrinello, Zeno Zuffa
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Patent number: 7409883Abstract: The inventive axoid mechanism and axoid press relate to mechanical engineering, to devices for converting power and speed parameters of linear motions and are based on power axoid mechanisms whose friction is eliminated by the substitution of a sliding motion with an axoid rolling and by the reciprocal balance of normal reaction components in bearing elements of the novel balanced power axoid mechanism. Said mechanism is embodied in the form of a closed system of axoid mechanisms comprising end elements which are linearly movable in the direction thereof.Type: GrantFiled: March 24, 2003Date of Patent: August 12, 2008Inventors: Evgenny Alexeevich Don, Florid Borisovich Kim, Igor Vladimirovich Smarygin
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Patent number: 7407376Abstract: Apparatus for compression molding plastic articles includes a plurality of molds mounted for travel around a first axis. Each mold includes an upper mold section and a lower mold section, with at least one of the upper and lower mold sections being moveable in a non-circular first endless path, and being moveable with respect to the other mold section to form a mold cavity. A mold charge delivery system delivers individual mold charges to the mold cavities and includes at least one delivery mechanism that travels in a second endless path around a second axis spaced from the first axis, wherein the second endless path overlies a portion of the first endless path.Type: GrantFiled: July 21, 2005Date of Patent: August 5, 2008Assignee: Graham Packaging Company, L.P.Inventor: Scott W. Steele
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Patent number: 7381047Abstract: A mold capable of preventing deterioration of the mold even when a material for spherical members is harder than that for the mold, and capable of aligning the center axis between an insert member and a body member thereof with high accuracy even when a pressure of resin filling is applied. The mold has an insert member with a cavity surface, and a body member for supporting the insert member from outside via a plurality of spherical members. Tubular liners harder than the spherical members are provided between the body member and the spherical members and between the insert member and the spherical members.Type: GrantFiled: October 17, 2006Date of Patent: June 3, 2008Assignee: FUJIFILM CorporationInventors: Noriko Eiha, Seiichi Watanabe
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Patent number: 7368075Abstract: The invention concerns an impact machine for forming a body with desired shape of a formable working material through impact action in a forming operation, said impact machine comprising a machine stand (6), an upper unit which comprises either a lower impact unit (3), which comprises a counter-impact device, or a stationary anvil, and a central unit between the upper and the lower units.Type: GrantFiled: April 7, 2005Date of Patent: May 6, 2008Assignee: Morphic Technologies Aktiebolag (Publ)Inventor: HÃ¥kan Olsson
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Patent number: 7344370Abstract: A device (20) for assembling a plastic-lens-forming casting mold includes a gasket clamping mechanism (22) which clamps a gasket (2) from its axial direction, a first mold push-in mechanism (23) which pushes in an upper mold (3) fitted in an upper open end of the gasket (2), and a second mold push-in mechanism (24) which pushes in a lower mold (4) fitted in a lower open end of the gasket (2). The gasket clamping mechanism (22) clamps the gasket (2) from the axial direction by a gasket-pressing ring (34) and lower mold ring (35). The first mold push-in mechanism (23) pushes the upper mold (3) into the gasket (2) by a gasket push-in member (58). The second mold push-in mechanism (24) includes a plurality of push pins (68) and pushes up the lower mold (4) to push it into the gasket (2).Type: GrantFiled: December 22, 2003Date of Patent: March 18, 2008Assignee: Hoya CorporationInventors: Tatsuo Nishimoto, Akira Hamanaka, Nobuhiko Takeda
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Patent number: 7306441Abstract: High pressure synthesis of various crystals such as diamond, cBN and the like can be carried out using reaction assemblies suitable for use in methods such as temperature gradient methods. The reaction assembly can be oriented substantially perpendicular to gravity during application of high pressure. Orienting the reaction assembly in this manner can avoid detrimental effects of gravity on the molten catalyst, e.g., convection, hence increasing available volumes for growing high quality crystals. Multiple reaction assemblies can be oriented in series or parallel, each reaction assembly having one or more growth cells suitable for growth of high quality crystals. Additionally, various high pressure apparatuses can be used. A split die design allows for particularly effective results and control of temperature and growth conditions for individual crystals.Type: GrantFiled: February 6, 2004Date of Patent: December 11, 2007Inventor: Chien-Min Sung
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Patent number: 7255550Abstract: A press-molding mold includes a first mold (10), a second mold (20), a complementary element (30) arranged between the first mold (10) and the second mold (20), a washer (40) arranged between the second mold (10) and the complementary element (30), and a bushing (50) for receiving the first mold (10), the second mold (20), the complementary element (30) and the washer (40) therein. The first mold (10) includes a first molding surface (132) and a second molding surface (134) surrounding the first molding surface (132). The second mold (20) includes a third molding surface (232) spatially corresponding to the first molding surface (132). The complementary element (30) includes a fourth molding surface (321) spatially corresponding to the second molding surface (134). The washer (40) has a thickness custom-tailored for maintaining a desired distance between the fourth molding surface and the second molding surface.Type: GrantFiled: May 3, 2006Date of Patent: August 14, 2007Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Tsung-Wei Chiang
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Patent number: 7252495Abstract: A press-molding mold includes a first mold part (10), a second mold part (20), a bushing (40), a first latching pin (50) and a second latching pin (70). The second mold part (20) defines a longitudinal central axis (21) and includes a first positioning portion (211) having an annular groove (212) defined in an outer surface thereof and a plurality of first longitudinal holes (213) defined therein. The bushing (40) includes a second positioning portion (430) defining a second longitudinal through hole (432) configured for alignment with one of the first longitudinal holes (213) and a transverse through hole (434) spatially corresponding to the annular groove (212). The first latching pin (50) latchingly extends through the transverse through hole (434) and insertion into the annular groove (212). The second latching pin (70) latchingly extends through the second longitudinal hole (432) and insertion in one of the first longitudinal hole (213).Type: GrantFiled: May 15, 2006Date of Patent: August 7, 2007Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Tsung-Wei Chiang
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Patent number: 7235201Abstract: A device to compact parts out of powder material including a top die and a bottom die movable with respect to each other from an open position to a closed position, at least one punch associated with each of said dies for relative movement between the die and associated punch, said bottom die and bottom punch movable to positions defining a cavity substantially within said top die for receiving powder therein, said bottom punch and said top and bottom dies being relatively movable to draw powder down into a portion of said cavity adjacent the bottom die that is formed due to said relative movement, said top and bottom punches being movable toward each other to compact the powder and form the part, said top and bottom dies being separable to eject the part. Relative movement of the top and bottom die and bottom punch may take place during filling of the cavity with powder.Type: GrantFiled: December 20, 2004Date of Patent: June 26, 2007Assignee: BorgWarner Inc.Inventors: Edwin Scott Hicklen, Sean Kuplen, Kai Xu, Ryan Sun
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Patent number: 7214046Abstract: The present invention is a method and apparatus for the production of compacted powder elements. More specifically, the present invention is directed to the improvement of tooling for powder compaction equipment, and the processes for making such tooling. The improvement comprises the use of a ceramic tip or similar component in high wear areas of the tooling, particularly center pins. Moreover, the use of such ceramic components enables reworking and replacement of the worn tool component.Type: GrantFiled: April 7, 2003Date of Patent: May 8, 2007Inventor: Luka Gakovic
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Patent number: 7147452Abstract: A block forming apparatus comprises a frame, a compression case and compression bodies. The compression case is movably engaged with the frame in a manner enabling movement of the compression case along a longitudinal reference axis of the compression case. The compression case has a compression body receiving passage extending between opposed end faces thereof along the longitudinal reference axis. The compression case includes a media fill opening within an upper wall thereof and a block discharge opening within a lower wall thereof. The media fill opening and the block discharge opening are each communicative with the compression body receiving passage. The compression bodies are movably mounted within the compression body receiving passage of the compression case in a manner enabling movement of said compression bodies along the longitudinal reference axis of the compression case.Type: GrantFiled: July 2, 2005Date of Patent: December 12, 2006Inventors: Steve Eugene Everett, Jay Dean Everett
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Patent number: 7140866Abstract: A self-alignment stage for compression-forming machines, which self-aligns an upper surface of a lower mold seated on an inner frame, thus compensating for a relative pose error of the lower mold with respect to an upper mold when the material is compression-formed between the upper mold and the lower mold. The self-alignment stage for the compression-forming machines, includes an outer frame comprising a body having a space therein, a plurality of outer connectors protruding from a side surface of the body of the outer frame so as to support the body on a support base of a compression-forming machine, and the inner frame placed in the space of the outer frame such that the inner frame executes a horizontal translational motion and a rotational motion with respect to the outer frame.Type: GrantFiled: March 4, 2004Date of Patent: November 28, 2006Assignee: Korea Institute of Machinery & MaterialsInventors: Kee-Bong Choi, Jae-Jong Lee
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Patent number: 7140861Abstract: A compliant UV imprint lithography template, which may also act as a thermal implant template, and methods for manufacturing it. The template essentially comprises a relief image and an elastomer adapted to adjust the relief image. In an embodiment, the relief image is arranged in a compliant imprinting layer where the elastomer is arranged between the imprinting layer and a rigid transparent substrate. In an embodiment, the template is compliant to a wafer surface. In an embodiment, layering an elastomer and an imprinting layer on a substrate and patterning a relief image into the imprinting layer, form the template.Type: GrantFiled: April 27, 2004Date of Patent: November 28, 2006Assignee: Molecular Imprints, Inc.Inventors: Michael P. C. Watts, Ronald D. Voisin, Sidlgata V. Sreenivasan
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Patent number: 7132072Abstract: To manufacture a multi-core press-coated molded product efficiently and in a single step from molding materials, namely, powder or granular particles, a punch has been devised that is characterized in that the punch, consists of a center punch whose tip portion is split into two or more parts, and an outer punch enclosing the outer perimeter of the center punch, and whose tip portion fills the gap at the tip portion of the center punch, with both the center and outer punches being slidable and manipulatable for compression operation the method of manufacturing a multi-core press-coated molded product using the punch of the invention as compression molding means for at least the upper punch and preferably for both the upper and lower punches, and a rotary compression molding machine therefore is also discribed.Type: GrantFiled: September 24, 2002Date of Patent: November 7, 2006Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.Inventors: Yuichi Ozeki, Yoshiya Kondo, Yukinao Watanabe
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Patent number: 7037465Abstract: A powder compacting method includes the steps of: providing a powder material; loading the powder material into a cavity; uniaxially pressing the powder material, which has been loaded into the cavity, between two opposed press surfaces, thereby obtaining a compact, wherein at least one of the two press surfaces is deformed elastically under a compacting pressure when contacting with the powder material in the cavity; and unloading the compact from the cavity. According to this powder compacting method, even when the powder material has a non-uniform fill density distribution, a compact with a uniform density distribution can be obtained at a high productivity.Type: GrantFiled: November 5, 2001Date of Patent: May 2, 2006Assignee: Neomax Co., Ltd.Inventor: Atsushi Ogawa
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Patent number: 7033156Abstract: The present invention is a method and apparatus for the production of compacted powder elements. More specifically, the present invention is directed to the improvement of tooling for powder compaction equipment, and the processes for making such tooling. The improvement comprises the use of a ceramic tip or similar component in high wear areas of the tooling, particularly center pins. Moreover, the use of such ceramic components enables reworking and replacement of the worn tool components.Type: GrantFiled: December 16, 2002Date of Patent: April 25, 2006Inventor: Luka Gakovic
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Patent number: 6887416Abstract: A method and device for the production of a closure cap having a first part (16, 17) and a second part (18), joined together by at least one thinner section (19). The device contains a female mould part (11) and a male mould part (12), which are moveable relative to one another, in order to enclose a mould cavity. After the closing of the mould cavity, an additional mould part (14) is moveable relative to the mould cavity. In order to reduce the volume thereof, until the plastics material fills the mould cavity completely. Consequently the invention ensures that when compression moulding in the mould cavity, the closure cap and in particular also the thinner section (19) are formed completely in the mould provided.Type: GrantFiled: November 1, 2000Date of Patent: May 3, 2005Assignee: Crown Cork & Seal Technologies CorporationInventors: Dieter Schmitt, Raymond Stich
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System and method for loading a plurality of powder materials in an electromagnetic compaction press
Patent number: 6868778Abstract: This invention relates to a system and method for loading a plurality of powder materials into a magnetic compaction tool. The system and method employ a powder loader which guides the plurality of powder materials into predetermined locations in the magnetic compaction tool so that when the tool is electromagnetically energized, the plurality of powder materials are compacted to form a part having a plurality of densified metals formed by the plurality of powder materials.Type: GrantFiled: September 14, 2001Date of Patent: March 22, 2005Assignee: IAP Research, Inc.Inventors: Edward Arlen Knoth, Bhanu Chelluri, Edward John Schumaker -
Patent number: 6813906Abstract: A molded glass article manufacturing device, having a means of forcefully separating a molded glass article attached to the forming surface of an upper mold or a lower mold, and readily and reliably aligning the axes of the upper mold and lower mold, a molded glass article manufacturing method, and a method of assembling a molded glass article manufacturing device are provided.Type: GrantFiled: October 31, 2000Date of Patent: November 9, 2004Assignee: Hoya CorporationInventors: Shinichiro Hirota, Kishio Sugawara
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Patent number: 6787082Abstract: The punch coated with Cr-Dopé-N is advantageous as a punch for preparing tablets containing an acidic substance or an adhesive substance and is excellent in corrosion resistance and releasing property.Type: GrantFiled: October 10, 2001Date of Patent: September 7, 2004Assignee: Takeda Chemical Industries, Ltd.Inventors: Hikaru Fukuyama, Hiroshi Fukada, Tetsuro Tabata, Etsuji Nakamura, Norio Kameoka, Toshihiro Shimizu
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Patent number: 6749783Abstract: A portable single station method and apparatus for compressing a quantity of freshly dug soil into building blocks by an enclosed system which provides a linear process for receiving and compressing the quantity of soil and for ejecting the formed, compressed building blocks. The system includes a stationary chamber equipped with an internal adjustable cavity in which the desired block is formed and a pair of opposing pressure heads capable of moving toward and away from each other in unison or independently to receive, compress, and eject the building blocks.Type: GrantFiled: August 22, 2001Date of Patent: June 15, 2004Inventor: Steve Everett
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Patent number: 6749416Abstract: A die for a rotary compression press, comprising a die holder axially supported in a guide bore and a die insert which is seated in the end-side bore of the die holder via a trunnion-shaped projection and is adapted to be mounted via releasable fastening means, wherein the projection is helically guided in the bore between axially spaced stops and is biased by a spring towards the associated front-end face of the die holder.Type: GrantFiled: January 17, 2001Date of Patent: June 15, 2004Assignee: Wilhelm Fette GmbHInventors: Ulrich Arndt, Andreas Arning, Heinrich Behrmann, Helmut Bommrowitz, Thomas Heinrich, Jürgen Hinzpeter, Thomas Jacob, Peter Lüneburg, Nils Petersen, Hans-Joachim Pierags, Jürgen Schikowski, Elke Wittenberg, Hans Wolf, Ulrich Zeuschner
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Publication number: 20040067275Abstract: A tablet press machine (1) includes a fixed casing (2) which houses a compression assembly (3) comprising a power-driven rotor (4) that rotates about an axis (5), the rotor including a matrix disc (6) and another two discs (7, 8) on both sides of it, mounting two sets of reciprocating punches (9, 10) opposite and aligned with each other in pairs. The matrix disc (6) has a plurality of through matrixes (11) where the reciprocating punches (9, 10) forming each pair are mounted in such a way as to delimit between them an empty space (12) of variably size designed to contain a dosed quantity of powder to be compressed. Two sets of cams (13, 14) are associated with the compression assembly (3) and, as the rotor (4) rotates, impart on the punches (9, 10) a driving motion which moves them cyclically towards and away from each other in such a way as to compress the powder contained in the matrix (11) in the matrix disc (6).Type: ApplicationFiled: August 27, 2003Publication date: April 8, 2004Inventors: Roberto Trebbi, Hans Kramer
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Publication number: 20040028765Abstract: A tablet-making apparatus comprising die supports and guide supports fixed upon a base, plunger guides supported by the guide supports, a die having an opening through which powder may be charged, two plunger rods with opposing faces, the rods being horizontally disposed and reciprocally received within the die, and a means for activating the reciprocal movement of the plungers whereby, a tablet may be formed within the die and between the opposing plunger rod faces and then moved to a position to be gravitationally discharged.Type: ApplicationFiled: August 12, 2002Publication date: February 12, 2004Applicant: TIY Inc.Inventors: Mordechai Kerzner, Eli Pinthus, Chanoch Kotev
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Publication number: 20040026812Abstract: A tablet-making apparatus comprising die supports and guide supports fixed upon a base, plunger guides supported by the guide supports, a die having an opening through which powder may be charged, two plunger rods with opposing faces, the rods being horizontally disposed and reciprocally received within the die, and a means for activating the reciprocal movement of the plungers whereby, a tablet may be formed within the die and between the opposing plunger rod faces and then moved to a position to be gravitationally discharged.Type: ApplicationFiled: November 20, 2002Publication date: February 12, 2004Applicant: TIY Inc.Inventors: Eli Pinthus, Nissim Garti, Mordechai Kerzner, Yoram Sela, Chanoch Kotev
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Publication number: 20030194463Abstract: The present invention is a method and apparatus for the production of compacted powder elements. More specifically, the present invention is directed to the improvement of tooling for powder compaction equipment, and the processes for making such tooling. The improvement comprises the use of a ceramic tip or similar component in high wear areas of the tooling, particularly center pins. Moreover, the use of such ceramic components enables reworking and replacement of the worn tool components.Type: ApplicationFiled: December 16, 2002Publication date: October 16, 2003Inventor: Luka Gakovic
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Patent number: 6619945Abstract: A machine for making building blocks from compactible materials such as earth, in a rapid and facile manner. A mold is provided in which the blocks of desired configuration, typically rectangular, are formed. A hydraulic ram, assisted by a pressure intensifier, is utilized to exert tremendously high pressures on the compactible material in the mold so that the particles of the materials are substantially bonded together to produce a solid block.Type: GrantFiled: August 31, 2000Date of Patent: September 16, 2003Inventor: James O. Sims
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Publication number: 20030164564Abstract: The invention relates to a method and apparatus for making thick-walled plastic parts, in particular blanks for optical lenses. In accordance with the invention, a two-phase production process is proposed in order to make thick-walled lenses with high optical quality and homogenous material properties, wherein in a first phase, a thin lens is first made through injection molding, and in a second step the lens is enlarged, i.e. “inflated”, until the final thickness through continued injection of plastic material.Type: ApplicationFiled: March 31, 2003Publication date: September 4, 2003Applicant: KRAUSS-MAFFEI KUNSTOFFTECHNIK GMBHInventor: Bernd Klotz
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Publication number: 20030164565Abstract: An injection mold insert and a method of fabricating an injection mold insert for molding lens molds which provides a plurality of replicates of a single master mold mandrel which may be produced, for example, by diamond point. The mandrel is used to electroform an electroform mold insert component having an optical quality surface which forms a surface of an injection mold. An adhesive is used to fixedly attach the electroform mold insert to a separately machined mold insert substrate.Type: ApplicationFiled: February 20, 2003Publication date: September 4, 2003Inventor: Keith T. O'Brien
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Publication number: 20030164562Abstract: This invention relates to the preparation of molds for the production of contact lenses and other ophthalmic articles. By using an inorganic material to coat the optical surfaces and sidewalls of mold parts made from clear-resin materials, manufacturers can produce lens molds with greater dimensional stability and chemical resistance. In addition to protecting the clear resin from interaction with otherwise reactive monomers from which the molded article is made, such coatings can also be used to achieve preferential release of the molded article. The resulting mold is especially useful for providing an economical way to improve manufacturing quality of contact lenses.Type: ApplicationFiled: March 12, 2003Publication date: September 4, 2003Applicant: Bausch & Lomb IncorporatedInventors: Hongwen Li, Dominic V. Ruscio, Yu Chin Lai, Horngyih Huang
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Patent number: 6582641Abstract: An apparatus and process for making metal oxide sputtering targets from volatile and thermally unstable metal oxide powder by hot-pressing the metal oxide powder in a graphite die assembly having a ceramic barrier sleeve disposed therein to isolate the metal oxide powder from the graphite die assembly components.Type: GrantFiled: August 25, 1994Date of Patent: June 24, 2003Assignee: Praxair S.T. Technology, Inc.Inventors: Chi-Fung Lo, John Turn
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Patent number: 6569364Abstract: An interface F between upper mandrels and lower mandrels are moved to a predetermined position in a cavity with the upper mandrels and the lower mandrels slidingly moving toward the lower punch while the upper mandrels and the lower mandrels remain in contact with each other, in a manner such that pressure is not applied to powdered dielectric material disposed in the cavity. The powdered dielectric material in the cavity is compressed by an upper punch and the lower punch while the upper mandrels and the lower mandrels remain in contact with each other, thereby forming a dielectric block.Type: GrantFiled: June 4, 2001Date of Patent: May 27, 2003Assignee: Murata Manufacturing Co. Ltd.Inventors: Wataru Yanase, Yukio Higuchi
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Publication number: 20030082258Abstract: Continuous molding apparatus includes a raw material supplying portion, a mixing portion, a molding portion, a supporting portion, and ram portions for moving mixture through the apparatus. The molding portion is formed by portions of the supporting frame and mold faces of the ram portions, which act in concert to load, compress, transport, and deliver the molded product. Charge volume is determined by the controlled distance between front and rear ram portions when in position under the raw material supplying portion. The molded material receives the compression force along the positive and negative directions of the horizontal axis on its wear faces. The ability to use the apparatus on a continuous basis allows unlimited production runs and permits the apparatus to be self-cleaning.Type: ApplicationFiled: October 18, 2001Publication date: May 1, 2003Inventor: James M. Henderson
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Patent number: 6511451Abstract: Tampon applicator for feminine hygiene, comprising a cylindrical applicator barrel of paper-like material, having a front end comprising segments which are bent forwards and inward with respect to the longitudinal center axis of the applicator barrel, forming a dome whereby a weakening of the segments is provided for reducing their resistance to a spreading movement of the segments during the pushing out of a tampon from the applicator barrel. The bases of the segments are formed by the front, solid-cylindrical end of the applicator barrel and the weakening of the segments is provided on the inner surface and at an axial distance from the base of the segments. The tampon applicator reduces the ejecting pressure by means of the predetermined breaking lines at the inner surface of each segment while the smooth outside of the segments reduces irritations when in use. Additionally, the invention relates to a process and an apparatus for manufacturing said tampon applicator.Type: GrantFiled: August 17, 1999Date of Patent: January 28, 2003Inventors: Hans Werner Schoelling, Helena Engvist
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Publication number: 20020175439Abstract: A powder pressing apparatus comprises an upper punch and a lower punch for compression of a powder in a cavity formed in a through hole of a die. A gap between a side surface of the lower punch and a side surface of the through hole of the die is sealed by a sealing member. A lubricant is supplied with a gas from a nozzle in the side surface of the lower punch to the side surface of the through hole, and the lubricant applied to the side surface of the through hole is spread by an absorbing member. The cavity is filled with the powder while the cavity is under suction by a reduced pressure provided from the nozzle in the side surface of the lower punch. During the suction, a filtering member provides filtration for the lower punch not to draw the powder in.Type: ApplicationFiled: July 15, 2002Publication date: November 28, 2002Applicant: Sumitomo Special Metals Co. Ltd.Inventors: Seiichi Kohara, Tsutomu Harada
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Patent number: 6482349Abstract: A powder pressing apparatus comprises an upper punch and a lower punch for compression of a powder in a cavity formed in a through hole of a die. A gap between a side surface of the lower punch and a side surface of the through hole of the die is sealed by a sealing member. A lubricant is supplied with a gas from a nozzle in the side surface of the lower punch to the side surface of the through hole, and the lubricant applied to the side surface of the through hole is spread by an absorbing member. The cavity is filled with the powder while the cavity is under suction by a reduced pressure provided from the nozzle in the side surface of the lower punch. During the suction, a filtering member provides filtration for the lower punch not to draw the powder in.Type: GrantFiled: October 20, 1999Date of Patent: November 19, 2002Assignee: Sumitomo Special Metals Co., Ltd.Inventors: Seiichi Kohara, Tsutomu Harada